A Friend Jolene mention today something about having a beautiful Chinook Arch today... So I googled... and found this beautiful picture... gorgeous!!!! Here is the meaning of such Arch.. Thanks to the Glossary of Meteorology and yes Jolene hangs in Canada.
chinook arch—A mountain-wave cloud form that occurs along the east slopes of the Rocky Mountains, particularly in the Montana–Alberta area, where the range runs roughly north–south.